import java.util.ArrayList;
import java.util.List;
import java.util.Random;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: WHY
 * Date: 2022-07-04
 * Time: 23:51
 */
class   Card{
    public int rand;
    public  String suits;

    public Card(int rand, String suits) {
        this.rand = rand;
        this.suits = suits;
    }
}
public class TestDemo {
        public List<Card>   buyDeskCard(){
            List<Card>   hand1=new ArrayList<>();
            // return
            Random  random=new Random();//这个方法就是存在于库中的
            Card  tmp=card.get
        }
}
